import java.util.Arrays;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ws
 * Date: 2024-02-03
 * Time: 15:08
 *
 * https://www.nowcoder.com/share/jump/7745334641706944146111
 */
public class BM67 {

    public int uniquePaths(int m, int n) {
        int[][] dp = new int[m][n];
        Arrays.fill(dp[0], 1);
        for (int i = 0; i < m; i++) {
            dp[i][0] = 1;
        }
        for (int i = 1; i < m; i++) {
            for (int j = 1; j < n; j++) {
                dp[i][j] = dp[i][j - 1] + dp[i - 1][j];
            }
        }
        return dp[m - 1][n - 1];
    }
}
